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IOSR Journal of Engineering (IOSRJEN) www.iosrjen.org
ISSN (e): 2250-3021, ISSN (p): 2278-8719
Vol. 04, Issue 02 (February. 2014), ||V7|| PP 20-27
International Organization of Scientific Research 20 | P a g e
Preparation, Characterization, Viscosity and Thermal Analysis of
a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
Moina Akhtar Mughal1, Akhtar H. Mughal
2, Zeenat M. Ali
3,
Ghulam Zuhra Memon1, Mohammad Yar Khuhawar
4, Hussain Saleem
5*
1 Dr. Mumtaz Ali Kazi Institute of Chemistry, University of Sindh, Jamshoro, Pakistan
2 Institute of Physics, University of Sindh, Jamshoro, Pakistan
3 Mehran University of Engineering & Technology, Jamshoro, Sindh, Pakistan
4 Institute of Advanced Research Studies in Chemical Sciences, University of Sindh, Jamshoro, Pakistan
5 Department of Computer Science, University of Karachi, Karachi, Pakistan
Abstract: - A New Schiff based resin Poly-methylene bis (2-methyoxy-1-napthaldehyde) 1, 2-propylenediimine
(PMBMNPn) was synthesized by reacting with Formaldehyde (HCHO). The synthesized resin was categorized through
elemental micro-analysis and Fourier transformation. The infrared, ultraviolet and visible spectroscopic analysis TGA/DTA
and Viscometric studies were also carried out. The results of Carbon-Hydrogen-Nitrogen (CHN) Analysis were in good
agreement with the considered values and reinforced the formation of the prepared resin. The resin indicated more strong
absorption around 16 to 35 cm-1 of stretching vibration than the Schiff base, confirming the structure of synthesized
resin. A shift of absorption maxima towards longer wavelength within 10 to 34nm perceived in the initial 3 bands of
compound PMBMNPn in comparison with BMNPn. A significant elevation in for resin was seen as compared to Schiff
base.
Keywords: - Characterization, Resin, Synthesis, Thermo-gravimetery, Viscosity.
I. INTRODUCTION The Schiff based resins establish significant type of ligands which have been widely considered in
coordination chemistry because of its electronic and catalytic possessions [3]. The focused resins have been
utilized for pre-concentration and split-up of trace elements from ocean. Their analytical usage in combination
with AAS (Atomic Absorption Spectroscopy) has well been recognized [14] and these ligands are reflected by
possessing responsive functional groups of Oxygen, Nitrogen, and Sulphur in backbone of the polymer,
proficient of organizing to dissimilar metal ions [12]. The structure of polymer permits favored discrimination to
some metal ions and thus there is a considerable alteration in the constancy of complexes [13]. Resins of Urea-
formaldehyde possess profitable position especially as glues for wooden goods and are easy for construction at
cheap prices. Carbon thirteen nuclear magnetic resonance was used to study (F/U1) mole ratio for preparing
compound [9]. Thermo setting polyimide Schiff base resins find applications in electronics for making
conducting or insulating thermo stable glues in the field of structural materials to prepare composite matrices
[11]. Cyclohexene-formaldehyde resins can expand adhesion, rigidity and luster of covering films [16]. These
can also be used as adhesives in rough coats [10]. Water proofing arrangement centered on acetone
formaldehyde resin is established to elevate the efficacy of repair works to save wells from flow of water. A
Salicylic acid-formaldehyde copolymer, having Orcinol (SFO), a chelating resin was found constant in acidic
conditions, and was considered via Fourier transform, infrared analysis, elemental analysis, scanning electron
microscopy, XRD (X-Ray Diffraction) and optical photographs [2]. Different Schiff base polymers have been
produced and categorized spectroscopically and are described as arrangement of ligands [5]. The study under
investigation reports the preparation, characterization, viscosity and thermal analysis of a newly formed resin,
by a general method [4],[6]. These are (1) Polymethylene bis (2-methoxy-1-napthaldehyde) 1,
(2) 2-diiminopropane (PMBMNPn).
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
International Organization of Scientific Research 21 | P a g e
II. MEASUREMENTS The CHN (Carbon-Hydrogen-Nitrogen) Analysis was performed at Elemental Microanalysis Ltd.
Devon, England, H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan and NCEAC Sindh
University, Jamshoro. The spectra were recorded on Nicolet Avatar 330 FT-IR (Thermo Nicolet Electron
Corporation, USA) with ATR (Attenuated Total Reflectance) accessory (Smart Partner) between 4000-600 cm-1
.
The Ultraviolet/Vis spectrums of the prepared compounds were recorded in DMF on 35 double beam
Spectrophotometer. Quartz glass cells of one centimeter path length were used. The graphs were documented
within 190nm to 700nm. The Thermo Analytical Graphs (TAG) were attained by using Pyris Diamond TGA
(Thermal Gravimetric Analysis)/DTA (Differential Thermal Analysis) i.e. TA (Thermal Analyzer) from 24C
upto 600C with a nitrogen flow rate of 5mL/min, on a heating rate of 25C/min in an inert atmosphere. The
viscosity of the prepared compound was calculated by means of the standardized Ostwald’s Viscometer, with
Gallen Kamp thermally controlled bath containing water. The flow time of solvent Dimethyl formamide (DMF)
was recorded within 283 to 323K with an intermission of 10K (Kelvin).
III. EXPERIMENTAL WORK 3.1 Materials and Methods
2-methoxy-1-napthaldehyde, (Fluka, Switzerland) CH2NH2CHNH2CH3 (E. Merck, Germany), (DMF).
C2H5OC2H5 and CH3COOH (Germany), Etoh, normal-hexane (E. Merck, Germany).
3.2 Preparation of (BMNPn)
One gram of 2-methoxy-1-napthaldehyde was added to 0.198 mL of CH2NH2CHNH2CH3 dissoluted in
15mL of ethanol and then was refluxed for 30 minutes. The resultant oily mixture was melted in C2H5OC2H5
and added equivalent amount of normal-hexane. The compound crystallized and was recrystallized from ethyl
alcohol. The resultant precipitates were oven dried for 4 hours at 80C. The compound melted at 100C.
Figure-1 shows the chemical scheme for preparation of Schiff base (BMNPn).
Fig.-1: Chemical Scheme for Preparation of Schiff base (BMNPn)
3.3 Poly Condensation of Schiff base with Formaldehyde to form (PMBMNPn)
One gram of BMNPn was added in 25mL of distilled H2O, agitated the combination for 10 to 15
minutes. 15 drops of 2 molar sodium hydroxide was added thereafter. The mixture was heated upto 60C for
5 minutes and pure solution was added 37% HCHO with it with 1:3 molar ratio. The product was boiled in bath
containing oil at 120 to 130C for 2 hours. The unsolvable resin was filtered, washed with H2O and C2H5OC2H5.
The precipitates were than oven dried for 7 to 8 hours at 70 to 80C. The recovered compound was
recrystallized from Etoh. The compound melted at 121C. Figure-2 shows the chemical scheme for preparation
of Resin (PMBMNPn).
Fig.-2: Chemical Scheme for Preparation of Resin (PMBMNPn)
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
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IV. RESULTS AND DISCUSSION The Schiff base BMNPn, and resin PMBMNPn were prepared by a general method, and achieved in
accessible yields. The results of CHN Analysis related closely to the calculated values as shown in Table-1.
Table-1: CHN Analysis of Schiff base BMNPn, and resin PMBMNPn
Compound Chemical Formula Melting Point Calculated % (Found %)
C H N
BMNPn (Schiff base) C27H26N2O2 95°C 78.90 (79.54) 6.38 (6.50) 6.82 (7.29)
PMBMNPn (Resin) (C28H26N2O2)n 115°C 79.40 (77.45) 6.42 (6.32) 6.61 (6.54)
The results of FTIR (Fourier Transform Infra-Red) Spectra of Schiff bases and resins are shown in
Figure-3 and Figure-4. The spectra of each are sectioned into three main regions: (1) 4000 cm-1
to 2000 cm-1
,
(2) 2000 cm-1
to 1000 cm-1
, and (3) 1000 to 600 cm-1
respectively.
Fig.-3: FTIR Spectra of Schiff base (BMNPn)
Fig.-4: FTIR Spectra of Resin (PMBMNPn)
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
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Table-2: Results of Spectrophotometric Studies in DMF as Solvent
BMNPn (Schiff base) max (nm) 270 300 348
PMBMNPn (Resin) (nm), (1% , Lg-1cm-1) 280 (253.5) 330 (401.3) 382 (365.4)
The Schiff base displayed various vibrations of fluctuating intensities above 3000 cm-1
due to aromatic
stretching, and the bands around 2820 cm
-1 and 3000 cm
-1, due to aliphatic
frequencies. The
compound PMBMNPn at 2972 cm-1
and 2836 cm-1
show stretching vibrations due to aliphatic group.
The resins PMBMNPn showed more stronger absorptions at 1635 cm-1
of stretching, in comparison
with BMNPn that was offering comparatively medium bands thus, approving the compound’s structure. The
resin PMBMNPn showed a shift of 8 cm-1
towards higher frequency in comparison with the Schiff base, and is
due to polymerization.
SCHIFF BASE RESIN _____
Fig.-5: The UV/Visible Absorption Spectrums of Schiff base (BMNPn) and Resin (PMBMNPn)
The UV/Visible absorption spectrums of Schiff base (BMNPn) and Resin (PMBMNPn) are shown in
Figure-5. The spectrums of BMNPn showed 3 bands at 270nm, 300nm, and at 348nm with molar absorptivities
20739.0 Lmol-1
cm-1
, 34907.6 Lmol-1
cm-1
, 31211.5 Lmol-1
cm-1
, due to * evolutions in aromatic napthyl
ring system and due to * changes concerning napthyl rings and -electrons. The resin PMBMNPn,
displayed absorptions at 280nm, 330nm and at 382nm with (ε 1% = 253.5 Lg-1
cm-1
, 401.3 Lg-1
cm-1
, and
365.4 Lg-1
cm-1
) due to * shifts in napthyl rings and * shifts relating napthyl rings and conjugated
-electron systems. A shift towards longer wavelengths of 10 to 34nm was perceived in the first three
bands of resin PMBMNPn in comparison with Schiff base due to poly condensation as shown in Table-2 above.
The thermo analytical plots were obtained by using Pyris Diamond TGA (Thermo Gravimetric Analyzer) from
24C to 600C with a nitrogen flow rate of 5mL/min at a heating rate of 25mL/min in an inert atmosphere [1].
Thermal analyses of the Schiff base BMNPn is shown in Figure-6, and Resin PMBMNPn is shown in
Figure-7. The weight loss of about 0.8 % in the region of 50–100C as shown in Figure-6 is due to removal of
water from the sample. Within 200 and 265C, the material faced quick weight loss, with the rate of loss 2.18%
per C at 250C (maximum rate of weight loss). The total or 100% weight loss is also observed at 270C.
Two endotherms were detected in the DTA plot at 88C and 265C. The first agrees to the melting of
the Schiff base and second with DTA peak is linked to the vaporization/volatilization whereas the resin
PMBMNPn displayed first weight loss of about 2% within 50 to 100C due to removal of H2O from compound.
Within 280 and 350C, the compound faced fast weight loss with the degree of loss 1.97%/C at 322C i.e. the
maximum rate of weight loss, . The 100% weight loss observed at 500C.
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
International Organization of Scientific Research 24 | P a g e
Fig.-6: Thermal Analyses of the Schiff base BMNPn
Fig.-7: Thermal Analyses of the Resin PMBMNPn
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
International Organization of Scientific Research 25 | P a g e
(a) Schiff base (b) Resin
Fig.-8: Reduced viscosity vs Concentration at different temperature of (a) Schiff base, (b) Resin
Two further strong endotherms were detected in the DTA curve at 115C and 317C. The first one
agrees to the melting of the resin and the other one was related to the vaporization/volatilization/decomposition.
The viscometric measurements of all compounds were calculated by using the calibrated Ostwald’s Viscometer.
The compounds of concentrations 0.024 to 0.064g/dL were equipped by adding Dimethyl formamide to the
re-weighed Schiff base or resin sample in a volumetric flask. The viscometer was occupied with 15mL of
solution with concentrations 0.024 to 0.064g/dL and a flow time at 283K to 323K with an interval of 10K
were measured [7]. From the flow time of the solvent and solution the parameters discussed in the beginning
were calculated.
The graph-plot plotted between concentrations and as shown in Figure-8 (a) & (b) showed
linear relationship obeying Huggin’s equation. The reduced viscosity of Schiff base was within
0.20.4 dL/g and for resin 0.30.5 dL/g. The resin showed enhancement in reduced viscosity as
compared to its Schiff base and the results indicated that values of reduced viscosity rises with the escalation in
concentration. Intrinsic viscosity is directly related to the polymer sizes and as the polymeric chain increases the
molecule becomes huge, resulting into a rise in intrinsic viscosity. Table-3 shows the values of intrinsic
viscosity . For Schiff base it was 0.28900.2015 dL/g and for resin 0.4900.345 dL/g exhibiting that the values
increases as the molecular weight increases.
Table-3: Intrinsic Viscosity values of Schiff base and Resin (dL/g)
Compounds Temperature K
283 293 303 313 323
BMNPn 0.2890 0.2629 0.2310 0.2160 0.2015
PMBMNPn 0.4908 0.4505 0.3860 0.3593 0.3449
The absolute viscosity calculated for Schiff base BMNPn was 0.1990.430 and for resin
PMBMNPn 0.2860.464 m.N.s/m2. The values of for Schiff base and Resin rises with the escalation in
concentration due to rise in density of polymeric solution, and reduced with elevated temperature. The
values of the prepared compounds rise with temperature and concentration, and were within the range for
BMNPn 13.93614.397 K.J.mol-1
and for resin PMBMNPn 14.38315.279 K.J.mol-1
. The polymeric resin
possess weaker associations and easily astounded during the process of flow, but as the concentration rises the
connotations become stronger and gets least affected [8]. The increase in with elevation in temperature
indicated conversion of shape of molecules of polymeric resin [15],[17]. The values of entropy were within
0.00447 to 0.00322g/dL and for resin 0.01965 to 0.20258g/dL. The negative values indicated order in the
system.
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
International Organization of Scientific Research 26 | P a g e
V. CONCLUSION A new Schiff base and a resin was synthesized, and thoroughly characterized via elemental
microanalysis, FTIR, UV/VIS Thermo Analytical (TA) studies and viscometery. The CHN values of the
compounds found closely correlated to the calculated values conforming the formation of compounds. The resin
indicated more stronger absorption band at 1635 cm-1
of azomethine stretching vibration than the Schiff
base, approving the structure of the newly prepared resin. A shift of absorption maxima towards longer
wavelengths of 10 to 34nm was detected in the first three absorption bands of resin PMBMNPn as compared to
Schiff base BMNPn. A significant elevation in for resin was observed as compared to Schiff base.
VI. ACKNOWLEDGEMENT The authors are thankful to Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro,
Pakistan for providing research facilities at Analytical Chemistry Labs. The CHN analysis was conducted at
Elemental Microanalysis Ltd. Carlo Elba Devon, United Kingdom, H.E.J. Research Institute of Chemistry,
University of Karachi, Pakistan and NCEAC, University of Sindh, Jamshoro. The authors are also thankful to
Incharge, Softronix Science Simulation Lab (FF-21, UBIT Building), Department of Computer Science,
University of Karachi, Pakistan for providing support for performing data analysis, software based simulation,
and document processing of this Research paper.
REFERENCES [1] AK Shah, ZM Ali, AR Memon, AJ Laghari, MA Mughal, SFA Shah, Hussain Saleem, “Exploitation of Low Cost Coal Fly Ash
Adsorbent with Coagulants for the Treatment of Industrial Complex Nature Dyes Wastewater”, International Journal of Scientific &
Engineering Research, Volume 4, Issue 9, (September-2013). [2] Bhavna Shah, Ajay Shah, Nayan Patel, Pathik Shah, “Synthesis, Characterization and Analytical Applications of Chelating Resin
containing Orcinol”, Polish Journal of Chemical Technology, 14, Issue 2, pp.88–96, (2012).
[3] E Ispir, S Serin, “New Immobilized Schiff bases”, Journal of Thermal Analysis, Vol 94; 1, 281 (2008). [4] El-Sayed M.E. Mansour, A. A. Kaseem, H. Nourel-Din, A. A. El-Toukhy, “Synthesis and Properties of some Schiff base Polymers
containing Sulfur”, Macromolecular Reports, 28, 103, (1991).
[5] MA Mughal, AH Mughal, ZM Ali, GZ Memon, MY Khuhawar, Hussain Saleem, “New Antimicrobial Schiff base Polymers derived from 6, 6-Methylenebis (1-Napthaldehyde)”, International Journal of Scientific & Engineering Research, Volume 4, Issue 9,
(September-2013).
[6] MA Mughal, AH Mughal, ZM Ali, GZ Memon, MY Khuhawar, Hussain Saleem, “Synthesis, Characterization and Antibacterial and Antifungal Studies of Schiff base Polymers derived from Methylene bis Cinnamaldehyde”, IOSR Journal of Engineering (IOSRJEN),
Vol. 3, Issue 10, pp.48-55, (October 2013).
[7] MA Mughal, AH Mughal, ZM Ali, Hussain Saleem, “Antimicrobial Viscometric Studies of Thermally Stable Metal based Schiff Base Polymer derived from 4, 4-Methylene bis Furfuraldehyde”, International Journal of Advancements in Research & Technology,
Volume 2, Issue 8, (August-2013).
[8] MG Kim, “Examination of Selected Synthesis Parameters for Wood Adhesive-Type Urea–Formaldehyde Resins by 13C NMR Spectroscopy”, III; Journal of Applied Polymer Science, 80(14) 2800, (2001).
[9] MY Khuhawar, A Shah, MA Mughal, “Preparation and Characterization of some Schiff base Polymers derived from 4,4-methylene bis
(Cinnamaldehyde)”, Chinese Journal of Polymer Science (2007). [10] ON Kuznetsova, AK Sakhapova, VP Arkhireev, RR Kadyrov, “Applications of Acetone-Formaldehyde Resins for Hydraulic Seal of
Oil Wells”, Polymer Science Series D, 1, 4, 249-252, Springer, (2008).
[11] R Mercier, T Pascal, B Sillion, “Thermosetting Polyimide Schiff base Resins, their Preparations, Applications”, US Patent 5,064,934, Google Patents, (1991).
[12] S Samal, NK Mohapatra, S Acharya, “Chelating Resins VII: Studies of Chelating Resins of Formaldehyde and Furfuraldehyde
Condensed Phenolic Schiff base derived from 4,4-diaminodiphenyl Sulphone”, Reactive and Functional Polymers, 42; 37-52, Elsevier Science, (1999).
[13] S Samal, RR Das, D Sahoo, “Chelating Resins. III. Synthesis, Characterization and Capacity Studies of Formaldehyde Condensed
Phenolic Schiff bases derived from 1,2-diamines and Hydroxyl”, In Journal of Applied Polymer Science, Vol.62, 1437-1444, Dept. of Chemistry, India. (1996).
[14] S Samal, RR Das, S Acharya, “A Comparative Study on Metal ion uptake behavior of Chelating Resins derived from the
Formaldehyde-Condensed Phenolic Schiff bases of 4,4′-diaminodiphenyl Sulfone and Hydroxy benzaldehydes”, Dept. of Material
Sciences, South Korea, Polym, Plast. Technol. Eng., 41(2), 229-246, (2002).
[15] SM Laghari, MH Isa, AB Abdullah, AJ Laghari, Hussain Saleem, Microwave Individual and Combined Pre-Treatments on
Lignocellulosic Biomasses”, IOSR Journal of Engineering (IOSRJEN), Vol. 4, Issue 2, Ver. 6 (February 2014), pp.14-28. [16] YSR Quanyin, W Weizhong, M Xinwei, “Catalytic Cure of Urea Formaldehyde Resins with Different Structures”, Thermochimica
Acta, 253; 307-316, Elsevier Science. (1995).
[17] ZM Ali, MA Mughal, AJ Laghari, AK Ansari, Hussain Saleem, “Polymeric Cellulose Derivative: Carboxymethyl-Cellulose as useful Organic Flocculant against Industrial Waste Waters”, International Journal of Advancements in Research & Technology, Volume 2,
Issue 8, (August-2013).
Preparation, Characterization, Viscosity and Thermal Analysis of a Schiff-Based Resin derived from 2-Methoxy-1-Napthaldehyde
International Organization of Scientific Research 27 | P a g e
AUTHORS Moina Akhtar Mughal is presently working as Assistant Professor at Dr. M. A. Kazi Institute of
Chemistry, University of Sindh, Jamshoro, Pakistan. She has obtained her M.Sc. in Organic Chemistry
in 1995, and M.Phil. in 2003 from University of Sindh, Jamshoro, Pakistan. She has been awarded
Ph.D. from same university in 2014. She has teaching experience of more than 17 years. She is the
author of several research articles of national and international repute.
Akhtar Hussain Mughal is Professor and Director at the Institute of Physics, University of Sindh,
Jamshoro, Pakistan. He was awarded Ph.D. in Experimental High Energy Physics in 1991 from Brunel
University, London, UK, in the field of U.V. Photocathodes for Solid Scintillator Proportional Counter.
He has completed number of research projects in the field of Gamma Radiation Detectors Prototype
Photosensitive Multiwire Proportional Counter. His areas of research are novel UV-sensitive, air-stable
solid photocathodes for use in solid Scintillator, Proportional counters, new Photocathodes for fast
gaseous detectors, reflective UV Photocathodes for Position Sensitive Gaseous Detectors, Investigation
of new Low Ionization Potential Compounds as UV-Photocathodes in vacuum and gas media.
Zeenat Muhammed Ali is presently working as Assistant Professor in Chemical Engineering
Department, Mehran University of Engineering & Technology (MUET), Jamshoro, Sindh, Pakistan.
She has been recently awarded Ph.D. in 2014. She has also obtained B.E. in Chemical Engineering in
1997 and M.E. in Environment Engineering in 2002 from MUET, Jamshoro. She has extensively
worked in the area of Flocculation under Ph.D. studies and extracted natural flocculants from their
indigenous sources and applied for water treatment for removal of turbidity, total dissolved solids and
heavy metals. She has presented her work in various national and international conferences. Her work
is published in various journals of repute.
Ghulam Zuhra Memon is an Assistant Professor at Dr. M. A. Kazi Institute of Chemistry, University
of Sindh, Jamshoro, Pakistan. She got Ph.D. in Analytical Chemistry from NCEAC, and M.Sc. in
Physical Chemistry from University of Sindh, Jamshoro, Pakistan. She has worked as Research
Associate for three years from April 2005 till Feb 2008. Thereafter she has served as Lecturer from
Feb 2008 till April 2010 and Assistant Professor since April 2010 till date at Dr. M. A. Kazi Institute
of Chemistry, University of Sindh, Jamshoro, Pakistan. She has over all teaching and research
experience of eight years. She is an active researcher. Her research interest is in removal of toxic
chemicals from water using cost effective agricultural waste material. She has also conducted research
on assessment of toxic metals in soil and industrial effluents and molecularly imprinted polymers.
Muhammad Yar Khuhawar is Professor Emeritus, leading researcher and a versatile educator with
distinguished academic carrier producing 25 Ph.D., 9 M.Phil. and 3 M.E. research scholars. He is
honored with large number of National Awards, including Izaz‐e‐Kamal and Sitar‐e‐Imtiaz by
President of Islamic Republic of Pakistan for achievements in scientific research. He is well known
scholar having 35 years experience of teaching and research at higher education. Administrated
number of fully funded research schemes and various academic tasks. National reputation for
launching highly productive research workspace, in spite of meager research facilities available. He is
actively committed to the field of research yielding over 283 publications in national and international
journals. A large number of them are in the field of chromatography and electrophoresis for the
analytical methods development for metals, non‐metals and biological active compounds from wide variety of real samples;
the synthesis of a number of schiff base polymers; new stationary phases for gas chromatography and sensitive liquid
chromatography procedures for the determination of pesticide malathion.
Hussain Saleem is Assistant Professor and Ph.D. Research Scholar at Department of Computer
Science, University of Karachi, Pakistan. He received B.S. in Electronics Engineering from Sir Syed
University of Engineering & Technology, Karachi in 1997 and has done Masters in Computer Science
from University of Karachi in 2001. He also received Diploma in Statistics from University of Karachi
in 2007. He bears vast experience of more than 17 years of University Teaching, Administration and
Research in various dimensions of Computer Science. Hussain is the Senior Instructor and has been
associated with the Science Labs at Aga Khan Ex. Students Association Karachi since 1992. He served
as Bio-Medical Engineer at Aga Khan University in 1999-2000, where he practiced to learn and handle
various chemical lab tools e.g. Bio-Chemistry, Histology, Histopathology, Sample Chemistry
Analyzers, Radiology and MRI equipments. Hussain is the Author of more than 33 International Journal publications and
co-author of about 10 Monographs and he is Reviewer of various International Journals globally. His field of interest is
Software Science, System Automation, Hardware Design & Engineering, Data Analysis, and Simulation & Modeling.
Hussain is a good speaker and has been invited as guest in TV programs and disseminated knowledge over latest technology
trends. He is senior member of PEC (Pakistan Engineering Council), IEEE, ACM, IACSIT, and SDIWC.